Portable sounding apparatus



Oct. 6, 1964 H. 0. PEAVEY PORTABLE souupmc APPARATUS Filed April 10, 1963 IN VEN TOR. HARTLEY Q PEA l/EY United States Patent 3,151,699 PORTABLE SOUNDING APPARATUS Hartley D. Peavey, 1220 16th Ave., Meridian, Miss. I Filed Apr. 10, 1963, Ser. No; 271,950

3 Claims, (Cl. 181-31) The present invention relates generally to sounding devices and in particular to a portable speaker unit for use in a public address system, amplification of a musical instrument, or other loud speaker assemblies.

An object of the present invention is to provide a portable sounding apparatus having a telescoping portion so as to be compact when in condition for transportation but which may be enlarged so as to increase the frequency response and tonal quality of the reproducing unit installed therein.

Another object of the present invention is to provide in a cabinet of the type employed as a loud speaker mounting, a shell telescopingly arranged within the cabinet so that the internal volume of the cabinet can be adjusted with ease and facility.

A further object of the present invention is to provide in a portable sounding apparatus, means for increasing the tonality of a loud speaker installed in the apparatus, this means being easily adjusted and foolproof in operation.

These and other objects and advantages of the present invention will be fully apparent from the following de scription when considered in connection with the annexed drawing, in which:

FIGURE 1 is a front elevational view of the apparatus according to the present invention,

FIGURE 2 is a side elevational view with a portion broken away,

FIGURE 3 is a side elevational view with portions broken away showing the shell in the position of use,

FIGURE 4 is a fragmentary perspective view of one of the slides, on an enlarged scale,

FIGURE 5 is a view on an enlarged scale taken on the line 55 of FIGURE 2,

FIGURE 6 is a view on an enlarged scale, taken on the line 66 of FIGURE 3,

FIGURE 7 is a detailed fragmentary view in section of a portion of the sealing means, and

FIGURE 8 is a top plan view of the shell removed from the cabinet.

Referring in detail to the drawing in which like nu merals indicate like parts throughout the several views, the apparatus of the present invention comprises a cabinet 10 having'a front wall 12, side walls 14 and 16, a bottom 18, and a top The front wall 12 is provided with a cutout portion 22 behind which is mounted a loud speaker 24. A grill cloth 26 covers the front of the cabinet as shown most clearly, in FIGURE 1. The front wall 12 also has another cutout opening 28 for the emission of sound therethrough.

The present invention provides a shell designated generally by the reference numeral 30 which is telescopingly arranged in the cabinet 10. The shell 30 includes a bottom wall 32, a top wall 34, side walls 36 and 38, and a back wall 40 extending over the adjacent side edges of the bottom wall 32, top wall 34, and the side walls 36 and 38.

Inner engaging cooperating slide'means is provided on the side walls 14 and 16 and side walls 36 and 38 for allowing sliding movement of the shell 30 into and out of the open back of the cabinet 10. This slide means con-Y sists in a conventionally designed pair of slide elements 42 and 44 (FIGURE 4) having cooperating rollers 46 and 48 as shown most clearly in FIGURE 5.

A stop 50 projects upwardly from the element 42 and prevents the disengagement of the element 42 from the 3,151,699 Patented Oct. 6, 1964 element 44 unless a latch 52 is raised out of the way of the stop 50. Sealing means 54 extend about the interior of the cabinet 10 on the bottom 18, side walls 14 and 16, and on the underside of a partition 56 which is spaced below the top 20.

The space above the partition 56 and below the top 20 is employed to house electronic equipment such as an amplifier or the like. A handle 58 on the top 20 provides a means by which the cabinet and assembled shell may be carried from place to place as desired. An inset type of handle 60 is secured in the back wall 40 of the shell 30 to enable a person to readily grasp the shell 30 for moving it inwardly or outwardly of the cabinet 10.

Feet 62 on the underside of the bottom 18 complete the invention and the use of the invention is obvious to one skilled in the art.

The cabinet and assembled shell when in the collapsed condition shown in FIGURE 2 is readily portable and the shell is readily movable from the nested condition shown in FIGURE 2 to the expanded condition shown in FIG- URE 3.

Thumb screws 64 extending through the partition 56 and engageable with metal plates 62 insert into the shell top wall 34 are used as a means for securing the shell 30 in either the condition of use position shown in FIG- URE 3 or in the nested position shown in FIGURE 2.

While only a preferred form of the invention has been shown and described, other forms of the invention are contemplated and numerous changes and modifications may be made in the invention without departing from the spirit thereof as set forth in the appended claims.

What is claimed is:

1. In a portable sounding apparatus including an upright cabinet having a top, a bottom, side walls connecting the adjacent ends of said top and bottom together, a front wall extending over the adjacent edges of said top, bottom, and side Walls, said cabinet having an open back, and a sound reproducing unit mounted in said front wall, an upright shell having a bottom wall, a top wall, side walls connecting the adjacent ends of said bottom and top Walls together, a back wall extending over the adjacent edges of said bottom wall, top wall, and side walls, said shell being insertable into and withdrawablefrom the open back of said cabinet, and cooperating slide means on said shell side walls and said cabinet side walls supporting said shell for sliding movement relative to said cabinet.

2. In portable sounding apparatus including an upright cabinet having a top, a bottom, side walls connecting the adjacent ends of said top and bottom together, a front wall extending over the adjacent edges of said top, bottom, and side walls, said cabinet having an open back, and a soundreproducing unit mounted in said front wall, an upright shell having a bottom wall, a top wall, side walls connecting the adjacent ends of said bottom and top walls together, a back wall extending over the adjacent edges of said bottom wall, top wall, and side walls, said shell being insertable into and withdrawable from the open back of said cabinet, and cooperating slide means on said shell side walls and said cabinet side walls intermediate the ends thereof supporting said shell for and a soundreproducing unit mounted in said front Wall,-

an upright shell having a bottom wall, a top wall, side walls connecting the adjacent ends of said bottom and top walls together, a back Wall extending over the adjacent edges of said bottom wall, top wall, and side walls, said shell being insertable into and withdraw-able from the open back of said cabinet, and cooperating slide means on said shell side walls and said cabinet side walls intermediate the ends thereof supporting said shell for sliding movement relative to said cabinet, and releasable latchmeans for holding said shell against sliding movement relative to said cabinet.

References Cited in the file of this patent UNITED STATES PATENTS Bostwick July 24, 1934 Albrecht Mar. 18, 1952 Olson et a1 Aug. 18, 1953 FOREIGN PATENTS Denmark Apr. 2, 1936 

1. IN A PORTABLE SOUNDING APPARATUS INCLUDING AN UPRIGHT CABINET HAVING A TOP, A BOTTOM, SIDE WALLS CONNECTING THE ADJACENT ENDS OF SAID TOP AND BOTTOM TOGETHER, A FRONT WALL EXTENDING OVER THE ADJACENT EDGES OF SAID TOP, BOTTOM, AND SIDE WALLS, SAID CABINET HAVING AN OPEN BACK, AND A SOUND REPRODUCING UNIT MOUNTED IN SAID FRONT WALL, AN UPRIGHT SHELL HAVING A BOTTOM WALL, A TOP WALL, SIDE WALLS CONNECTING THE ADJACENT ENDS OF SAID BOTTOM AND TOP WALLS TOGETHER, A BACK WALL EXTENDING OVER THE ADJACENT EDGES OF SAID BOTTOM WALL, TOP WALL, AND SIDE WALLS, SAID SHELL BEING INSERTABLE INTO AND WITHDRAWABLE FROM THE OPEN BACK OF SAID CABINET, AND COOPERATING SLIDE MEANS ON SAID SHELL SIDE WALLS AND SAID CABINET SIDE WALLS SUPPORTING SAID SHELL FOR SLIDING MOVEMENT RELATIVE TO SAID CABINET. 